Contents of the .debug_info section:
Compilation Unit @ offset 0x0:
Length: 0x208 (32-bit)
Version: 2
Abbrev Offset: 0x0
Pointer Size: 4
<0><b>: Abbrev Number: 1 (DW_TAG_compile_unit)
<c> DW_AT_producer : (indirect string, offset: 0x4f): GNU C 4.8.4 -mx32 -mtune=generic -march=x86-64 -gdwarf-2 -fstack-protector
<10> DW_AT_language : 1 (ANSI C)
<11> DW_AT_name : (indirect string, offset: 0x229): mpers-mx32/struct_v4l2_ext_control.c
<15> DW_AT_comp_dir : (indirect string, offset: 0x1aa): /usr/local/google/home/enh/Downloads/strace-4.16
<19> DW_AT_stmt_list : 0x0
<1><1d>: Abbrev Number: 2 (DW_TAG_base_type)
<1e> DW_AT_byte_size : 1
<1f> DW_AT_encoding : 6 (signed char)
<20> DW_AT_name : (indirect string, offset: 0x20f): signed char
<1><24>: Abbrev Number: 2 (DW_TAG_base_type)
<25> DW_AT_byte_size : 2
<26> DW_AT_encoding : 5 (signed)
<27> DW_AT_name : (indirect string, offset: 0x158): short int
<1><2b>: Abbrev Number: 3 (DW_TAG_base_type)
<2c> DW_AT_byte_size : 4
<2d> DW_AT_encoding : 5 (signed)
<2e> DW_AT_name : int
<1><32>: Abbrev Number: 2 (DW_TAG_base_type)
<33> DW_AT_byte_size : 8
<34> DW_AT_encoding : 5 (signed)
<35> DW_AT_name : (indirect string, offset: 0x1ee): long long int
<1><39>: Abbrev Number: 2 (DW_TAG_base_type)
<3a> DW_AT_byte_size : 1
<3b> DW_AT_encoding : 8 (unsigned char)
<3c> DW_AT_name : (indirect string, offset: 0xfd): unsigned char
<1><40>: Abbrev Number: 2 (DW_TAG_base_type)
<41> DW_AT_byte_size : 2
<42> DW_AT_encoding : 7 (unsigned)
<43> DW_AT_name : (indirect string, offset: 0x9a): short unsigned int
<1><47>: Abbrev Number: 2 (DW_TAG_base_type)
<48> DW_AT_byte_size : 4
<49> DW_AT_encoding : 7 (unsigned)
<4a> DW_AT_name : (indirect string, offset: 0x173): unsigned int
<1><4e>: Abbrev Number: 2 (DW_TAG_base_type)
<4f> DW_AT_byte_size : 8
<50> DW_AT_encoding : 7 (unsigned)
<51> DW_AT_name : (indirect string, offset: 0xde): long long unsigned int
<1><55>: Abbrev Number: 2 (DW_TAG_base_type)
<56> DW_AT_byte_size : 4
<57> DW_AT_encoding : 5 (signed)
<58> DW_AT_name : (indirect string, offset: 0x206): long int
<1><5c>: Abbrev Number: 2 (DW_TAG_base_type)
<5d> DW_AT_byte_size : 4
<5e> DW_AT_encoding : 7 (unsigned)
<5f> DW_AT_name : (indirect string, offset: 0x10b): long unsigned int
<1><63>: Abbrev Number: 2 (DW_TAG_base_type)
<64> DW_AT_byte_size : 4
<65> DW_AT_encoding : 7 (unsigned)
<66> DW_AT_name : (indirect string, offset: 0x1e5): sizetype
<1><6a>: Abbrev Number: 4 (DW_TAG_pointer_type)
<6b> DW_AT_byte_size : 4
<6c> DW_AT_type : <0x70>
<1><70>: Abbrev Number: 2 (DW_TAG_base_type)
<71> DW_AT_byte_size : 1
<72> DW_AT_encoding : 6 (signed char)
<73> DW_AT_name : (indirect string, offset: 0x1a5): char
<1><77>: Abbrev Number: 4 (DW_TAG_pointer_type)
<78> DW_AT_byte_size : 4
<79> DW_AT_type : <0x7d>
<1><7d>: Abbrev Number: 5 (DW_TAG_const_type)
<7e> DW_AT_type : <0x70>
<1><82>: Abbrev Number: 6 (DW_TAG_structure_type)
<83> DW_AT_name : (indirect string, offset: 0x11d): sysent
<87> DW_AT_byte_size : 20
<88> DW_AT_decl_file : 1
<89> DW_AT_decl_line : 4
<8a> DW_AT_sibling : <0xd5>
<2><8e>: Abbrev Number: 7 (DW_TAG_member)
<8f> DW_AT_name : (indirect string, offset: 0x152): nargs
<93> DW_AT_decl_file : 1
<94> DW_AT_decl_line : 5
<95> DW_AT_type : <0x47>
<99> DW_AT_data_member_location: 2 byte block: 23 0 (DW_OP_plus_uconst: 0)
<2><9c>: Abbrev Number: 7 (DW_TAG_member)
<9d> DW_AT_name : (indirect string, offset: 0xd4): sys_flags
<a1> DW_AT_decl_file : 1
<a2> DW_AT_decl_line : 6
<a3> DW_AT_type : <0x2b>
<a7> DW_AT_data_member_location: 2 byte block: 23 4 (DW_OP_plus_uconst: 4)
<2><aa>: Abbrev Number: 8 (DW_TAG_member)
<ab> DW_AT_name : sen
<af> DW_AT_decl_file : 1
<b0> DW_AT_decl_line : 7
<b1> DW_AT_type : <0x2b>
<b5> DW_AT_data_member_location: 2 byte block: 23 8 (DW_OP_plus_uconst: 8)
<2><b8>: Abbrev Number: 7 (DW_TAG_member)
<b9> DW_AT_name : (indirect string, offset: 0x220): sys_func
<bd> DW_AT_decl_file : 1
<be> DW_AT_decl_line : 8
<bf> DW_AT_type : <0xe0>
<c3> DW_AT_data_member_location: 2 byte block: 23 c (DW_OP_plus_uconst: 12)
<2><c6>: Abbrev Number: 7 (DW_TAG_member)
<c7> DW_AT_name : (indirect string, offset: 0xb3): sys_name
<cb> DW_AT_decl_file : 1
<cc> DW_AT_decl_line : 9
<cd> DW_AT_type : <0x77>
<d1> DW_AT_data_member_location: 2 byte block: 23 10 (DW_OP_plus_uconst: 16)
<2><d4>: Abbrev Number: 0
<1><d5>: Abbrev Number: 9 (DW_TAG_subroutine_type)
<d6> DW_AT_type : <0x2b>
<da> DW_AT_sibling : <0xe0>
<2><de>: Abbrev Number: 10 (DW_TAG_unspecified_parameters)
<2><df>: Abbrev Number: 0
<1><e0>: Abbrev Number: 4 (DW_TAG_pointer_type)
<e1> DW_AT_byte_size : 4
<e2> DW_AT_type : <0xd5>
<1><e6>: Abbrev Number: 11 (DW_TAG_typedef)
<e7> DW_AT_name : (indirect string, offset: 0x197): struct_sysent
<eb> DW_AT_decl_file : 1
<ec> DW_AT_decl_line : 10
<ed> DW_AT_type : <0x82>
<1><f1>: Abbrev Number: 4 (DW_TAG_pointer_type)
<f2> DW_AT_byte_size : 4
<f3> DW_AT_type : <0xf7>
<1><f7>: Abbrev Number: 5 (DW_TAG_const_type)
<f8> DW_AT_type : <0xe6>
<1><fc>: Abbrev Number: 2 (DW_TAG_base_type)
<fd> DW_AT_byte_size : 1
<fe> DW_AT_encoding : 2 (boolean)
<ff> DW_AT_name : (indirect string, offset: 0xad): _Bool
<1><103>: Abbrev Number: 11 (DW_TAG_typedef)
<104> DW_AT_name : (indirect string, offset: 0x124): __s32
<108> DW_AT_decl_file : 2
<109> DW_AT_decl_line : 25
<10a> DW_AT_type : <0x2b>
<1><10e>: Abbrev Number: 11 (DW_TAG_typedef)
<10f> DW_AT_name : (indirect string, offset: 0x32): __u32
<113> DW_AT_decl_file : 2
<114> DW_AT_decl_line : 26
<115> DW_AT_type : <0x47>
<1><119>: Abbrev Number: 11 (DW_TAG_typedef)
<11a> DW_AT_name : (indirect string, offset: 0x24e): __s64
<11e> DW_AT_decl_file : 2
<11f> DW_AT_decl_line : 29
<120> DW_AT_type : <0x32>
<1><124>: Abbrev Number: 12 (DW_TAG_enumeration_type)
<125> DW_AT_name : (indirect string, offset: 0x162): v4l2_preemphasis
<129> DW_AT_byte_size : 4
<12a> DW_AT_decl_file : 6
<12b> DW_AT_decl_line : 763
<12d> DW_AT_sibling : <0x144>
<2><131>: Abbrev Number: 13 (DW_TAG_enumerator)
<132> DW_AT_name : (indirect string, offset: 0x0): V4L2_PREEMPHASIS_DISABLED
<136> DW_AT_const_value : 0
<2><137>: Abbrev Number: 13 (DW_TAG_enumerator)
<138> DW_AT_name : (indirect string, offset: 0x180): V4L2_PREEMPHASIS_50_uS
<13c> DW_AT_const_value : 1
<2><13d>: Abbrev Number: 13 (DW_TAG_enumerator)
<13e> DW_AT_name : (indirect string, offset: 0x13b): V4L2_PREEMPHASIS_75_uS
<142> DW_AT_const_value : 2
<2><143>: Abbrev Number: 0
<1><144>: Abbrev Number: 14 (DW_TAG_union_type)
<145> DW_AT_byte_size : 8
<146> DW_AT_decl_file : 3
<147> DW_AT_decl_line : 1225
<149> DW_AT_sibling : <0x172>
<2><14d>: Abbrev Number: 15 (DW_TAG_member)
<14e> DW_AT_name : (indirect string, offset: 0x38): value
<152> DW_AT_decl_file : 3
<153> DW_AT_decl_line : 1226
<155> DW_AT_type : <0x103>
<2><159>: Abbrev Number: 15 (DW_TAG_member)
<15a> DW_AT_name : (indirect string, offset: 0xf5): value64
<15e> DW_AT_decl_file : 3
<15f> DW_AT_decl_line : 1227
<161> DW_AT_type : <0x119>
<2><165>: Abbrev Number: 15 (DW_TAG_member)
<166> DW_AT_name : (indirect string, offset: 0xbc): string
<16a> DW_AT_decl_file : 3
<16b> DW_AT_decl_line : 1228
<16d> DW_AT_type : <0x6a>
<2><171>: Abbrev Number: 0
<1><172>: Abbrev Number: 16 (DW_TAG_structure_type)
<173> DW_AT_name : (indirect string, offset: 0x3e): v4l2_ext_control
<177> DW_AT_byte_size : 20
<178> DW_AT_decl_file : 3
<179> DW_AT_decl_line : 1221
<17b> DW_AT_sibling : <0x1b4>
<2><17f>: Abbrev Number: 17 (DW_TAG_member)
<180> DW_AT_name : id
<183> DW_AT_decl_file : 3
<184> DW_AT_decl_line : 1222
<186> DW_AT_type : <0x10e>
<18a> DW_AT_data_member_location: 2 byte block: 23 0 (DW_OP_plus_uconst: 0)
<2><18d>: Abbrev Number: 18 (DW_TAG_member)
<18e> DW_AT_name : (indirect string, offset: 0x21b): size
<192> DW_AT_decl_file : 3
<193> DW_AT_decl_line : 1223
<195> DW_AT_type : <0x10e>
<199> DW_AT_data_member_location: 2 byte block: 23 4 (DW_OP_plus_uconst: 4)
<2><19c>: Abbrev Number: 18 (DW_TAG_member)
<19d> DW_AT_name : (indirect string, offset: 0x1fc): reserved2
<1a1> DW_AT_decl_file : 3
<1a2> DW_AT_decl_line : 1224
<1a4> DW_AT_type : <0x1b4>
<1a8> DW_AT_data_member_location: 2 byte block: 23 8 (DW_OP_plus_uconst: 8)
<2><1ab>: Abbrev Number: 19 (DW_TAG_member)
<1ac> DW_AT_type : <0x144>
<1b0> DW_AT_data_member_location: 2 byte block: 23 c (DW_OP_plus_uconst: 12)
<2><1b3>: Abbrev Number: 0
<1><1b4>: Abbrev Number: 20 (DW_TAG_array_type)
<1b5> DW_AT_type : <0x10e>
<1b9> DW_AT_sibling : <0x1c4>
<2><1bd>: Abbrev Number: 21 (DW_TAG_subrange_type)
<1be> DW_AT_type : <0x63>
<1c2> DW_AT_upper_bound : 0
<2><1c3>: Abbrev Number: 0
<1><1c4>: Abbrev Number: 11 (DW_TAG_typedef)
<1c5> DW_AT_name : (indirect string, offset: 0x1a): struct_v4l2_ext_control
<1c9> DW_AT_decl_file : 4
<1ca> DW_AT_decl_line : 40
<1cb> DW_AT_type : <0x172>
<1><1cf>: Abbrev Number: 22 (DW_TAG_variable)
<1d0> DW_AT_name : (indirect string, offset: 0x12a): current_wordsize
<1d4> DW_AT_decl_file : 5
<1d5> DW_AT_decl_line : 757
<1d7> DW_AT_type : <0x47>
<1db> DW_AT_external : 1
<1dc> DW_AT_declaration : 1
<1><1dd>: Abbrev Number: 22 (DW_TAG_variable)
<1de> DW_AT_name : (indirect string, offset: 0x11d): sysent
<1e2> DW_AT_decl_file : 5
<1e3> DW_AT_decl_line : 892
<1e5> DW_AT_type : <0xf1>
<1e9> DW_AT_external : 1
<1ea> DW_AT_declaration : 1
<1><1eb>: Abbrev Number: 22 (DW_TAG_variable)
<1ec> DW_AT_name : (indirect string, offset: 0x1db): nsyscalls
<1f0> DW_AT_decl_file : 5
<1f1> DW_AT_decl_line : 903
<1f3> DW_AT_type : <0x47>
<1f7> DW_AT_external : 1
<1f8> DW_AT_declaration : 1
<1><1f9>: Abbrev Number: 23 (DW_TAG_variable)
<1fa> DW_AT_name : (indirect string, offset: 0xc3): mpers_target_var
<1fe> DW_AT_decl_file : 4
<1ff> DW_AT_decl_line : 47
<200> DW_AT_type : <0x1c4>
<204> DW_AT_external : 1
<205> DW_AT_location : 5 byte block: 3 10 0 0 0 (DW_OP_addr: 10)
<1><20b>: Abbrev Number: 0